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Proof step 1 from proof unmodified-load-key-node (conclusion)

⊦ iast[adr] = indexnode(brar, bv0, m) ∧ n < nused ∧ nused < BRANCH_SIZE ∧ unmodified(adr, mkznode(rp, zbrar, bv1, false, nused + 1), iast) → load(brar[n]).key = zbrar[n].key

System applied rule normalize

And obtained the following new goals

Proof step 2:
iast[adr] = indexnode(brar, bv0, m), n < nused, nused < BRANCH_SIZE, unmodified(adr, mkznode(rp, zbrar, bv1, false, nused + 1), iast) ⊦ load(brar[n]).key = zbrar[n].key

Proof step 1 from proof unmodified-load-key-node (conclusion)

System applied rule normalize

And obtained the following new goals

Rule argument

Additional information